This is the Eisenmann race exhaust for the E89 Z4 featuring the N54 twin turbo 6 cylinder. The exhaust features 4 x 76 millimeter tips for a very aggressive look. In the video, a 3d Design rear diffuser accentuates the exhaust nicely making for a much meaner looking tail than what is from the factory. Pricing information will be available soon but for now enjoy the sound of the exhaust in the videos below and the exhaust can ordered through our vendor IND-Distribution.

The GTHAUS exhaust for the 1M sounds badass as well from what I can tell. It's really hard to completely judge exhaust from a video though, speaker/recorder/soundcard quality all come into play and then you have compression or lower res versions to stream on the internet, and even the position of the recorder and the driving style of the driver.